Water Extractable Arabinoxylan Aerogels Prepared by Supercritical CO(2) Drying

Water extractable arabinoxylan (WEAX) aerogels were prepared by extracting the solvent from the alcogels (WEAX hydrogels with an alcohol as the solvent) with carbon dioxide under supercritical conditions. WEAX aerogels were characterized using scanning electron microscopy and adsorption and desorpti...

Descripción completa

Detalles Bibliográficos
Autores principales: Marquez-Escalante, Jorge, Carvajal-Millan, Elizabeth, Miki-Yoshida, Mario, Alvarez-Contreras, Lorena, Toledo-Guillén, Alma Rosa, Lizardi-Mendoza, Jaime, Rascón-Chu, Agustín
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2013
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6270070/
https://www.ncbi.nlm.nih.gov/pubmed/23673527
http://dx.doi.org/10.3390/molecules18055531
Descripción
Sumario:Water extractable arabinoxylan (WEAX) aerogels were prepared by extracting the solvent from the alcogels (WEAX hydrogels with an alcohol as the solvent) with carbon dioxide under supercritical conditions. WEAX aerogels were characterized using scanning electron microscopy and adsorption and desorption nitrogen isotherms. The micrographs indicate a heterogeneous porous network structure in WEAX aerogel. Adsorption/desorption nitrogen isotherms of this material were type IV, which confirm that this material possess a mesoporous structure. WEAX aerogels rehydration capability was evaluated and the water absorption mechanism was determined. The WEAX aerogels water absorption mechanism was non-Fickian (n = 0.54).

Ejemplares similares